<template>
  <div class="todo-header">
    <input
      type="text"
      placeholder="请输入你的任务名称，按回车键确认"
      @keydown.enter="getValue($event)"
    />
  </div>
</template>

<script>
export default {
  name: "TodoHeader", //这里必须为字符串
  data() {
    return {
      num: "000",
    };
  },
  methods: {
    getValue($event) {
      if ($event.target.value.trim()) {
        console.log("$event.target.value :>> ", $event.target.value);
        this.num = (Number.parseInt(this.num) + 1).toString();
        let obj = {
          id: "00" + this.num,
          todo: $event.target.value,
          does: false,
        };
        this.$bus.$emit("addTodoList", obj);
      } else {
        alert("输入不能为空");
      }

      $event.target.value = "";
    },
  },
};
</script>

<style scoped>
/*header*/
.todo-header input {
  width: 560px;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
}

.todo-header input:focus {
  outline: none;
  border-color: rgba(82, 168, 236, 0.8);
  box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075),
    0 0 8px rgba(82, 168, 236, 0.6);
}
</style>>